18x24 The Keeper of Traken, Part Four Season 18 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 10 0 Episodes Season 11 0 Episodes Season 12 0 Episodes Season 13 0 Episodes Season 14 0 Episodes Season 15 0 Episodes Season 16 0 Episodes Season 17 0 Episodes Season 19 0 Episodes Season 02 0 Episodes Season 20 0 Episodes Season 21 0 Episodes Season 22 0 Episodes Season 23 0 Episodes Season 24 0 Episodes Season 25 0 Episodes Season 26 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 05 0 Episodes Season 06 0 Episodes Season 07 0 Episodes Season 08 0 Episodes Season 09 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 05 0 Episodes Season 06 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 05 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 10 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 05 0 Episodes Season 06 0 Episodes Season 07 0 Episodes Season 08 0 Episodes Season 09 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 05 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 05 0 Episodes Season 06 0 Episodes Season 07 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 01 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 01 0 Episodes Season 02 0 Episodes Season 01 0 Episodes Season 10 0 Episodes Season 11 0 Episodes Season 12 0 Episodes Season 13 0 Episodes Season 14 0 Episodes Season 02 0 Episodes Season 03 0 Episodes Season 04 0 Episodes Season 05 0 Episodes Season 06 0 Episodes Season 07 0 Episodes Season 08 0 Episodes Season 09 0 Episodes Options 01 02 03 With the merciless Melkur in control of The Source, the Doctor and his allies have only a slim chance of deposing him, which also puts the peace of the Traken Union in severe jeopardy.